5009 20201122092725.0 POSTER-2020-0072 Trinh, Antony The biennial libration of Io. 2020 2020-12-09 BELSPO/ PRODEX/ PlanetInterior NO Libration Io Van Hoolst, Tim Matsuyama, Isamu American Geophysical Union veronique.dehant@observatoire.be https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/772573 CPOSTER